Case Studies in Reinforced and Prestressed Concrete

This book is a personal selection of incidents that have occurred related to

reinforced and prestressed concrete structures. Not all have led to failures
and some of the mistakes were discovered at the design stage. Each incident
required some form of remedial action to ensure safety of the structure.
Some of the incidents were caused by mistakes in design or construction or
both. Some involved collapse of part of the structure, but in such cases the
cause was from more than one unrelated mistake or problem. A few of the
errors and incidents were caused by deliberate intent.

Chapters 1 to 11 describe specific incidents such as structural misunderstanding,
extrapolation of codes of practice, detailing, poor construction, 
and other factors. When a particular incident involved more than one of 

these causes, it is described in the most relevant section. Chapters 12 and 
13 discuss issues related to procurement and research and development.
Care has been taken not to name the particular projects in which the 
incidents occurred, and the intention in providing the information is to 

ensure that such mistakes can be understood and avoided in the future.
Some of the problems were discovered in association with requests for
support about a different topic. In trying to discover the details of the problem 
it became clear that other more serious issues were at stake. This begs 

the question, how many unresolved problems and mistakes are out there 
that have not seen the light of day? It is fortunate that most reinforced
and prestressed concrete structures are indeterminate and allow alternative
load paths to form and prevent failures that were not foreseen in the design

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